In this work, aspects in real-time modeling and synthesis of three-dimensional sound in the context of digital audio, multimedia, and virtual environments are studied. The concept of virtual acoustics is discussed, which includes models for sound sources, room acoustics, and spatial hearing. Real-time virtual acoustics modeling is carried out using a real-time parametric room impulse response r...

A central problem in automatic sound recognition is the mapping between low-level audio features and the meaningful content of an auditory scene. We propose a dynamic network model to perform this mapping. In acoustics, much research is devoted to low-level perceptual abilities such as audio feature extraction and grouping, which are translated into successful signal processing techniques. Howe...

1603 Binaural recordings enable us to capture all sound attributes including spatial information, room effect, and source characteristics in a given environment. It has been shown that blocked-entrance binaural recordings provide advantages over open-entrance recordings, primarily because the blocked-entrance recordings are not influenced by the ear canal acoustics of the individual. However, b...

The role of acoustics in architectural planning processes is often neglected if the designer lacks necessary experience in acoustics. Even if an acoustic consultant is involved he might be presented with limited options after the initial planning process. Some disadvantageous decisions might be hard to reverse then. To improve and facilitate the construction process permanent immediate feedback...

A novel technique for the perceptual coding of spatial audio is presented. This coding technique allows individualized 3D audio presentation and exploits the dichotomous roles of the lowfrequency interaural timing and level difference cues versus the high-frequency spectral cues in human sound localization. The high-frequency spectral cues are modified to match the acoustics of the listener’s o...

Online digital audio is a rapidly growing resource, which can be accessed in rich new ways not previously possible. For example, it is possible to listen to just those portions of a long discussion which involve a given subset of people, or to instantly skip ahead to the next speaker. Providing this capability to users, however, requires generation of necessary indices, as well as an interface ...

1 Laboratory of Acoustics and Audio Signal Processing, Helsinki University of Technology, P.O. Box 3000, 02015 TKK, Finland 2Laboratoire de Communications Audiovisuelles 1, Institut de Systèmes de Communication, Faculté Informatique et Communications, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland 3Digital Signal Processing Group, Philips Research Labs, 5656 Eindhov...

The objectives of this internship were: studies on supervised and unsupervised text syllabification techniques, with a focus on unsupervised methods, implementation and evaluation of several unsupervised audio syllabification algorithms, implementation and evaluation of an unsupervised text syllabification algorithms, improve the performance of text syllabification with features from acoustics....

We present the Bistable Resonator Cymbal, a type of actuated acoustic instrument which augments a conventional cymbal with feedback-induced resonance. The system largely employs standard, commercially-available sound reinforcement and signal processing hardware and software, and no permanent modifications to the cymbal are needed. Several types of cymbals may be used, each capable of producing ...

This paper discusses the design issues of playful interaction within a museum through the study of a museum guide prototype that integrates a tangible interface, audio display, and adaptive modeling. We provide an overview of our case study, summary of our user evaluation, and discuss our use of ecological approaches from the domains of acoustics, ethnography and information technology in order...